X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/79a73ab2d1a63fdf75d42774e160a9335d893416..28fdb04fd8d62e46c36f959b373d662f1a146448:/common/cmd.c

diff --git a/common/cmd.c b/common/cmd.c
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+++ b/common/cmd.c
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+/*
+ * Proxmark send and receive commands
+ *
+ * Copyright (c) 2012, Roel Verdult
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holders nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @file cmd.c
+ * @brief
+ */
+
+#include "cmd.h"
+#include "string.h"
+#include "proxmark3.h"
+
+//static UsbCommand txcmd;
+
+bool cmd_receive(UsbCommand* cmd) {
+ 
+  // Check if there is a usb packet available
+  if (!usb_poll()) return false;
+  
+  // Try to retrieve the available command frame
+  size_t rxlen = usb_read((byte_t*)cmd,sizeof(UsbCommand));
+
+  // Check if the transfer was complete
+  if (rxlen != sizeof(UsbCommand)) return false;
+  
+  // Received command successfully
+  return true;
+}
+
+bool cmd_send(uint32_t cmd, uint32_t arg0, uint32_t arg1, uint32_t arg2, void* data, size_t len) {
+  UsbCommand txcmd;
+
+  for (size_t i=0; i<sizeof(UsbCommand); i++) {
+    ((byte_t*)&txcmd)[i] = 0x00;
+  }
+  
+  // Compose the outgoing command frame
+  txcmd.cmd = cmd;
+  txcmd.arg[0] = arg0;
+  txcmd.arg[1] = arg1;	
+  txcmd.arg[2] = arg2;
+
+  // Add the (optional) content to the frame, with a maximum size of USB_CMD_DATA_SIZE
+  if (data && len) {
+    len = MIN(len,USB_CMD_DATA_SIZE);
+    for (size_t i=0; i<len; i++) {
+      txcmd.d.asBytes[i] = ((byte_t*)data)[i];
+    }
+  }
+  
+  // Send frame and make sure all bytes are transmitted
+  if (usb_write((byte_t*)&txcmd,sizeof(UsbCommand)) != 0) return false;
+  
+  return true;
+}
+
+